Provided is a vacuum cleaner comprising a cleaning module capable of easily removing foreign material such as hair tangled in a brush unit. The vacuum cleaner comprises: a body having a suction hole; a brush unit rotatably arranged in the suction hole; and a cleaning module accommodated so as to be replaceable in the body, and removing foreign material tangled in the brush unit, wherein the cleaning module comprises: a housing accommodated so as to be replaceable in the body; a cartridge arranged inside the housing so as to be movable in the vertical direction; and a cutting portion arranged on a lower part of the cartridge so as to cut the foreign material tangled in the brush unit.